BLUEAIRBlue Pure 511 Air Purifier With HEPASilent Combination Filter For Rooms Up To 38m² Removes 99.97% Particles Pollen, Dust, Mould, Bacteria, Viruses | Activated Carbon Reduces VOCs, Odours

I purchased this via Amazon as it was on offer, so significantly cheaper the John Lewis. Honestly, the quality and air purification is incredible. Before this, members of my household were continuously sick. Now, we see very few problems. The dust and fluff it picks up weekly, shocks me. The purifier has 3 settings. Sleep mode, medium and high. We set the purifier to high when away and use sleep mode during the night. The noise is barely noticeable in sleep mode but I still wake up feeling fresher than before. It’s energy efficient too. I never turn it off and I’ve seen near enough no change in my energy bill. This purifier only works across the space of a standard room. You would require around 1 purifier per room to clear the house/apartment.The product is far cheaper than other mainstream purifiers and does a fantastic job.I would say the outer filter needs cleaning fortnightly and the main filter every 6 months. The blue air purifier does warn you that the main filter requires changing by showing a solid red light on the top console.

It is fantastic and have bought two now. I move them round my flat and they work quickly and well. The only drawback is that they slightly cool the air which is wonderful in the summer but I do use them less often in the winter. They are on 24/7 in the summer.The air feels REALLY healthy. (I have two dogs and they completely get rid of odors). For the price they seem by far the best option.

The introduction of this air purifier has coincided with feeling better and less congested. The only down side is that the operating buttons can be unresponsive... otherwise, it's great.

This air purifier looks very modern and smart. It’s decent size, light enough to lift should you need to move it, and very quiet. It can be heard on the high setting, but not annoyingly so. An improvement in air quality was obvious within minutes of turning it on.The outer cover is washable, and replaceable if necessary. The controls are very easy to use. The only downside in my opinion is the lack of any carry or grip handle. That’s ok if you are fully able bodied, but someone with arthritic hands, or a weak grip, would probably be unable to move if. This seems to be commonly lacking for dedicated air purifiers, whereas combined dehumidifier/air purifiers generally have some form of handle/grips. I imagine the lack of grip is to encourage people to buy one for each room.Overall, pleased with this item and would recommend.

I don’t know if anyone had the same issue as I had. I found the buttons not very sensitive. Sometimes I had to press multiple times to turn the machine on or off or change fan speed. I contacted the seller and got a replacement but it’s still the same. So I decided to return it :( I did like the style and quietness. However there’s no way to know how good the air quality is after running it for some time as there’s no indicator on Blueair Blue Pure 511.

I had a different brand and it done nothing. In fact it was full of dust mites and just blew dust out the top. This is a whole other story. Yes there is a faint chemical smell but nothing that time won't fix. Clear air in 12 minutes. Filter is massive. That's the trick. It's also very pleasant to look at. Whisper quiet on low.

I was doubtful when I purchased on just how good this thing could be. But I have to say I went in with low expectations and was actually left amazed with just how good and effective it is. You can smell the difference and can clear a decent sized stuffy room in under 20mins

Initially, the purifier was whisper quiet on number one and only little noisier on number two. It certainly made a difference to the level of dust in the room, but after only a month some mechanical noise has developed which renders it unusable. Awaiting assistance regarding replacement.